<%@ page import="java.sql.Connection,
               
                 java.sql.DriverManager,
                 java.sql.ResultSet,
                 java.sql.Statement" 
		 contentType="text/html;charset=utf-8"
 %>
 <%!     //函数和变量生命一定要加感叹号
  String s="tom";
  int hello(){
       return 3;
    }
 %>
 
<%=hello()%>   <b>不用分号</b>

